JAILED killer dad Mick Philpott faces accusations of rape by two women who were questioned as witnesses over the blaze that claimed six of his children.

As police pieced together evidence to show that Philpott deliberately torched his home, the women are said to have broken down during interviews – and claimed he sexually attacked them in separate incidents.

Now the 56-year-old is to be quizzed under caution at Wakefield high-security prison, where he is serving a minimum 15-year sentence for the manslaughter of the six innocent youngsters who died when he set light to their home in Derby.

One of the alleged victims has told police Philpott raped her inside a squalid caravan in his front garden after spiking her cup of tea.

She kept quiet about the alleged ordeal in 2005 before finally blurting it out to detectives who were investigating the blaze last year.

Her claims were recorded on video.

The woman, who cannot be named for legal reasons, said: “It was rape. He makes my flesh crawl.”

She claims it happened after she went to see Philpott at his home in Allenton, Derby.

He had been sleeping in the caravan outside, where he spent alternate nights having sex with wife Mairead and mistress Lisa Willis.

The woman added: “Mick never got up until the afternoon and it was quite normal for me to take him a cup of tea.”

It was not until she was interviewed by police about the fire that she decided to speak out.

“I told them I was raped,” she said. “They took one statement from me about Mick, and a separate statement about the rape.”

A second woman, who also cannot be named, claims Philpott forced her to have sex with him as they slept downstairs on the floor of a relative’s home in Derby in March, 1996.

She, too, made the allegations after being spoken to by officers during the blaze investigation.

Detectives are now set to take further, more detailed statements about the alleged rapes before putting the accusations to Philpott.

A source said: “The women will be formally interviewed, this time in connection with the rape allegations as opposed to the fire.

Philpott poses proudly with his children who became innocent victims of his revenge against his ex-lover (Image: Caters News Agency Ltd)

“Once those interviews are complete detectives will travel to Wakefield and interview Philpott.”

Philpott was jailed in April after being convicted of torching the house as the children slept in May 2012.

He started the blaze along with wife Mairead, 31, and best pal Paul Mosley, 46, as part of botched plan to frame ex-mistress Lisa Willis.